Then Gary the question might be who could provide a home and support a family on just the income from solely PLAYING Chromatic harmonica ? If we are going to use the word PROFESSIONAL, then compare to other professions, and the comparison throws up a near beggarly existence , not fit for providing. There may be an odd example or two that do make a reasonable living, but odd is the description i think, any youngster would be well advised to get a real job, play the harmonica in spare time and if money can be made from it , then it is a wee bonus, but never get carried away and dump the real job.
Sorry if this is a bit long, but here and in the U.K. there are so many young folks with stars in there eyes ( i have first hand experience), they lose their youth and prospects , dignity and sense , all because of what ? Ask them what and they garble a load of rubbish , tell them you could load all their musical heroes on to a massive spaceship and send them up and away to explore other galaxies forever , and the world would keep on spinning , life would carry on as per normal......... but they just don't get the importance of real jobs or work, that is for someone else, not them , they are special in their minds , it never occurs they are handicapped , disabled by their own attitude, outlook and narrow ambition, which isn't ambition at all , only pie in the sky hope .
Oops what was the question again ? Oh the number of PROFESSIONAL Chromatic players, well how many for any instrument world wide and for a life time, then dial it down instrument by instrument, piano , strings , wind , percussion etc., then we come to miscellaneous here we find among other instruments the harmonica, yep that's the one we are going to provide with , now why would that be sensible ?
jh.